Ectotrophous: with mouth parts free; not buried in the head: see entrotrophus.
Edematus: dull translucent white.
Edentate -ulous: without teeth.
Edentula: those having no teeth.
Efferent: carrying outward or away from the centre.
Effluvium: a foul or unpleasant smell or emanation.
Effected: somewhat angularly bent outward.
Egg: a simple cell, capable of fertilization, containing the germ, the food-yolk necessary for its nutriment, and a covering membrane: a single ovum or cell from an ovary: the first stage of the insect.
Egg-burster: a projecting point on the head or other part of an embryo, used in breaking the shell when hatching.
Egg-calyx: the enlarged portion of the oviduct at the opening of the ovarian tubes, into which the egg is received before its entrance into the vagina.